Body fat percentage in adolescent among eating risk behaviors, home and sex. ; Porcentaje de grasa corporal en adolescentes asociado con conductas alimentarias de riesgo, hogar y sexo

Objective. To determine the association of risky eating behaviors and the home with the percentage of body fat in adolescents, modified by gender. Materials and methods. We analyzed the information of a cohort of 2 388 adolescents from Morelos in Mexico, from 2004 to 2007. Descriptive techniques and multiple linear regression models of mixed effects were performed. Results. The change in body fat percentage (PGC) is -1.4 percentage points, in men -3.1, in women 0.2. The change of the PGC in relation to CAR’s and the household is different by sex. The multiple model shows that diet is associated with an increase in PGC (1.25 IC95% 0.68-1.83) in women, in men of 1.74 (95% CI 0.60-2.88). In relation with the family, women show a positive relationship with the increase in the percentage of body fat according to whether they feel that their family does not love them sometimes or never (value p of trend <0.001), men show in the variable “Satisfied with the help your family receives”, a marginal association. Conclusions. Performing a diet with­out supervision is associated with an increase in the PGC, giving an effect contrary to what is desired. This is associated with family relationships, and is different between sex. ; Objetivo. Determinar la asociación de las conductas ali­mentarias de riesgo (CAR) y el hogar con el porcentaje de grasa corporal (PGC) en los adolescentes, modificado por sexo. Material y métodos. Se analizó la información de una cohorte de 2 388 adolescentes de Morelos, México, de 2004 a 2007. Se realizaron técnicas descriptivas y modelos de regresión lineal múltiple de efectos mixtos. Resultados. El cambio del PGC es -1.4 puntos porcentuales (EE 0.22), en hombres -3.1 (EE 0.35) y en mujeres 0.2 (EE 0.21). El cambio del PGC en relación con CAR y el hogar es diferente por sexo. El modelo múltiple muestra que realizar dieta se asocia con el incremento del PGC (1.25 IC95% 0.68-1.83) en mu­jeres y en hombres (1.74 IC95% 0.60-2.88). En relación con la familia, las mujeres muestran una relación ...